Finding the Fourth Proportional to 118,617,704.20, 177,926,556.30 and 72,701,201.80
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Solution
The fourth proportional to 118,617,704.20, 177,926,556.30 and 72,701,201.80 is: 109,051,802.70
Step by Step Solution
- Step 1: Write the proportion equation
118,617,704.20 : 177,926,556.30 = 72,701,201.80 : x - Step 2: Convert to fraction form
118,617,704.20/177,926,556.30 = 72,701,201.80/x - Step 3: Cross multiply
118,617,704.20x = 177,926,556.30 × 72,701,201.80 - Step 4: Simplify right side
118,617,704.20x = 12,935,474,475,145,362 - Step 5: Solve for x
x = 12,935,474,475,145,362/118,617,704.20 - Step 6: Final answer
x = 109,051,802.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.